Gel valve regulated sealed battery, commonly known as gel batteries, are a type of lead-acid battery designed to provide reliable and maintenance-free power storage solutions. These batteries utilize a gel electrolyte, which sets them apart from traditional flooded lead-acid batteries.

FGG150-12 valve regulated sealed 12v gel battery 150ah
FGG150-12 valve regulated sealed 12v gel battery 150ah

Gel Valve Regulated Sealed Battery Features


Gel batteries contain a silica-based electrolyte that is in a gel state rather than a liquid. This immobilized electrolyte minimizes the risk of leakage and enhances the battery’s overall safety.

Valve Regulation

The term “valve regulated” refers to the one-way valve system that controls the release of excess gas generated during the charging process. This feature helps maintain the internal pressure and prevents the escape of electrolyte, ensuring a sealed and maintenance-free operation.

Sealed Design

Sealed gel batteries require no regular maintenance, such as adding water to the cells. This makes them a convenient and user-friendly option for various applications.


Maintenance-Free Operation

The sealed design and gel electrolyte eliminate the need for regular maintenance, making gel batteries ideal for applications.


The gel electrolyte minimizes the risk of acid leakage, making gel batteries safer for both the environment and users. The valve regulation system further enhances safety by controlling gas release.

Deep Discharge Tolerance

Gel batteries exhibit a high tolerance for deep discharges, making them suitable for applications that demand reliable power in cyclical or standby modes.


Renewable Energy Systems

Gel batteries find widespread use in off-grid and grid-tied renewable energy systems, providing reliable energy storage for solar and wind power installations.


Telecommunication systems commonly employ gel batteries, where maintaining network functionality requires uninterrupted power supply.

Uninterruptible Power Supply (UPS)

Gel batteries are utilized in UPS systems to ensure a reliable power source during electrical outages, protecting critical equipment and systems.

What is the Difference Between Gel and VRLA?

Gel batteries and VRLA (Valve Regulated Lead Acid) batteries are both types of sealed lead-acid batteries, but they differ in terms of the electrolyte used and some performance characteristics.

Electrolyte Composition

Gel Batteries

Gel batteries use a silica-based gel as the electrolyte. This gel immobilizes the electrolyte, reducing the risk of leakage and enhancing safety.

VRLA Batteries

VRLA batteries, in general, include both gel batteries and AGM (Absorbent Glass Mat) batteries. AGM batteries use a fiberglass mat saturated with electrolyte, allowing for a more flexible design compared to the rigid gel structure.

Physical Structure

Gel Batteries

The gel electrolyte gives the battery a rigid, jelly-like consistency.

VRLA Batteries

VRLA batteries encompass both gel and AGM types, with AGM batteries having a fiberglass mat that absorbs and holds the electrolyte.

Performance in Deep Discharges

Gel Batteries

Gel batteries typically have better tolerance for deep discharges compared to AGM batteries, making them suitable for applications where frequent deep cycling is required.

VRLA Batteries

AGM batteries might be more sensitive to deep discharges, but this can vary based on the specific design and purpose.

Internal Resistance

Gel Batteries

Gel batteries generally have slightly higher internal resistance compared to AGM batteries, which might affect their performance in high-current applications.

VRLA Batteries

AGM batteries tend to have lower internal resistance, making them more suitable for applications with high-current demands.

Application Suitability

Gel Batteries

Gel batteries are often preferred in applications where safety, tolerance for deep discharges, and minimal maintenance are critical, such as renewable energy systems and telecommunications.

VRLA Batteries

AGM batteries are commonly used in various applications, including uninterruptible power supply (UPS) systems, automotive starting batteries, and marine applications, where a balance of performance and maintenance is required.


Gel Valve Regulated Sealed Batteries offer a dependable and low-maintenance solution for various applications, ranging from renewable energy systems to telecommunications and UPS applications. Their unique features, such as the gel electrolyte and sealed design, contribute to enhanced safety, reliability, and longevity, making them a preferred choice in diverse industries.

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